Exoplanet trio opened, close to destruction

Exoplanet trio opened, close to destruction

Three new exoplanets discovered by TESS are called TOI-2337b, TOI-4329b and TOI-2669b. Their short orbital periods make them interesting objects, especially for understanding planetary evolution. Dedicated to destruction in "short" time, their study can reveal migration and atmospheric swelling mechanisms that have not yet been studied.

The co-operation between the TESS Space Telescope and the HIRES Spectrogram confirmed the existence of three exoplanets orbiting around giant stars. Their short orbital periods indicate that these bodies are close to destruction, making them interesting objects to be studied by astronomers. The discovery and confirmation of these three worlds was carried out by a research group led by Samuel Grunblat, a researcher from the Flatiron Institute in New York City announced:


Different exoplanets with a similar fate

Name of newly discovered planets

These exoplanets have different properties, but similar fates. Because of their short rotation, they are close to being absorbed by their host star. This makes them extremely useful in understanding the mechanisms that cause the planet to collapse, such as planetary migration or the swelling of the atmosphere. So in their diversity, they are a particularly interesting class of exoplanet to understand what happens in the last stages of life of the planetary system.


It's a planet with the shortest orbital period ever discovered in orbit by a red giant star. It orbits a star in about three days. Because of its close distance, the planet is prone to orbital decay due to the tide forces in the system. It is expected to be absorbed by a host star in less than a million years. Another interesting feature of the TOI-2337b is the absence of the bulge of the atmosphere that has been observed in two other detected exoplanets.

TOI-2669b and TOI-4329b

These worlds have similar characteristics. They are both bloated because of the heat emitted by the nearby star and are possible objects to determine the characteristics of the atmosphere.

In the future, similar planets are expected to be detected with the help of TESS, which recently reached 5,000 exoplanet candidates. This would allow for a detailed study of what happens to exoplanets before they are absorbed or destroyed by a star that has sheltered them for many years around it.

The full text of the study is published in .